X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=lzma%2Fcommon%2Fvli_size.c;fp=lzma%2Fcommon%2Fvli_size.c;h=ec1b4fa488b6afcb5093f56085a13a81cb8d1434;hb=32b8a6b26ed8843828e03e505d2256960bda0980;hp=0000000000000000000000000000000000000000;hpb=d48fc23a4bcf8ca3c406d6e8c8a6f8c6b0fa2f1e;p=zpackage

diff --git a/lzma/common/vli_size.c b/lzma/common/vli_size.c
new file mode 100644
index 0000000..ec1b4fa
--- /dev/null
+++ b/lzma/common/vli_size.c
@@ -0,0 +1,30 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       vli_size.c
+/// \brief      Calculates the encoded size of a variable-length integer
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "common.h"
+
+
+extern LZMA_API(uint32_t)
+lzma_vli_size(lzma_vli vli)
+{
+	if (vli > LZMA_VLI_MAX)
+		return 0;
+
+	uint32_t i = 0;
+	do {
+		vli >>= 7;
+		++i;
+	} while (vli != 0);
+
+	assert(i <= LZMA_VLI_BYTES_MAX);
+	return i;
+}